Hydrophylium or Hydrophyllium: How To spell?

The word Hydrophylium is misspelled against Hydrophyllium, a noun meaning "One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora."

Hydrophyllium has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings hydrophy & ium which should not be misspelled with single 'L'
Wrong Spelling:  hydrophy-l-ium 
Correct Spelling:  hydrophy-ll-ium 
Check more misspelled words of Hydrophyllium to spell it correct.